Coupling device

a technology of coupling device and coupling shaft, which is applied in the direction of yielding coupling, electric motor propulsion transmission, railway components, etc., can solve the problems of high maintenance cost noise in considerable extent of curved toothed coupling, and high cost of assembling and disassembling curved toothed couplings, etc., to achieve low maintenance cost, easy assembly, and high moment

Active Publication Date: 2020-06-02
SGF SUDDEUTE GELENKSCHEIBENFAB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0012]With the coupling device according to the invention, which has at least one cord-reinforced flexible joint device, all of the disadvantages of a curved toothed coupling described at the beginning can be eliminated, i.e., the coupling device according to the invention requires less maintenance, is easier to assemble and quieter than the known curved toothed couplings. Furthermore, and additionally, the coupling device according to the invention needs no oil or grease lubrication. Another advantage of the coupling device according the invention over the curved toothed coupling is that the coupling devices according to the invention are torsionally more flexible due to the cord-reinforced flexible joint device. In contrast, the curved toothed couplings known from prior art are torsionally very rigid. In the case of a short-circuited motor, a very high moment builds up due to the mass inertia of the wheel or wheel set, which can damage the gear unit. For this reason, curved toothed couplings have to be installed in most cases in combination with a friction clutch as a torque limiter. In the case of the coupling device according to the invention having at least one cord-reinforced flexible joint device, the drive train can twist due to the torsional flexibility of the coupling device or the cord-reinforced flexible joint device. Therefore, even in the case of a short circuit in the motor, only a low moment builds up, which cannot damage the gear unit.
[0013]Since the at least one flexible joint device is cord-reinforced, the coupling devices according to the invention have a higher power density compared with the prior art. The cord reinforcement of the flexible joint devices results in increased tensile strength so that with identical strength design, a considerably smaller installation space is needed for the cord-reinforced flexible joint device and thus for the coupling devices as a whole.

Problems solved by technology

Curved toothed couplings are high-maintenance due to their construction and the required oil or grease lubrication.
Assembling and disassembling a curved toothed coupling involves high expenditure of time.
Due to their tooth systems, curved toothed couplings also generate noise to a considerable extent.
Such flexible couplings are relatively difficult to assemble because the rubber blocks have to be radially preloaded in a complex manner during the assembly so as to achieve a compressive preload of the rubber blocks in the mounted state.

Method used

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Experimental program
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Effect test

second embodiment

[0098]FIG. 10 shows a perspective view of a coupling device 118 according to the invention.

[0099]The coupling device 118 has a first flange 140 and a second flange 142. The flanges 140, 142 are connected to the cord-reinforced flexible joint devices 134 and 136 via screws 156. According to this embodiment, the cord-reinforced flexible joint devices 134, 136 are each formed as a single flexible coupling body, i.e., as a flexible coupling disc. Such a flexible coupling body 134, 136 requires relatively little installation space in the axial direction. A disc-shaped connection element 168 that couples the cord-reinforced flexible joint devices 134, 135 to one another is provided between the cord-reinforced joint devices 134 and 136. The disc-shaped connection element 168 has connector pieces 170 and 172 for connecting to the cord-reinforced flexible joint devices 134 and 136. The connector pieces 170 serve for connecting to the flexible joint device 134. The connector pieces 172 serve ...

third embodiment

[0111]FIG. 13 shows a perspective view of a coupling device according to the invention.

[0112]According to this embodiment, the first flange 240 and the second flange 242 are provided on the same axial side of the cord-reinforced flexible joint device 234. The first flange 240 has six flange arms 240a to 240f. Similarly, the second flange 242 has six flange arms 242a to 242f, which engage in each case between two flange arms 240a to 240f of the first flange 240. The flange arms 240a to 240f of the first flange 240 are screwed to the cord-reinforced flexible joint device 234 via the screws 254. The flange arms 242a to 242f of the second flange 242 are connected to the cord-reinforced flexible joint device 234 via the screws 256.

[0113]FIG. 14 shows a top view of the coupling device 218.

[0114]In FIG. 14, the flange arms 240a to 240f of the first flange 240 and the flange arms 242a to 242f of the second flange 242 can be seen again, which are screwed to the cord-reinforced flexible joint...

fourth embodiment

[0119]FIG. 16 shows a perspective view of a coupling device 318 according to the invention.

[0120]According to this embodiment, the coupling device comprises, besides the first flange 340 and the second flange 342, an additional flange 388. The first flange 340 has four flange arms, of which the flange arms 340a, 340b and 340c are shown in FIG. 16. The flange arms 340a, 340b and 340c of the first flange 340 are screwed to the cord-reinforced flexible joint device 334 via the screws 356. The second flange 342 has flange arms as well, of which only the flange arm 342b can be seen in FIG. 16. The flange arm 342b is screwed to the cord-reinforced flexible joint device 343 via a screw 354. The additional flange 388 extends on the outside around the second flange 342 and has connecting sections 388a and 388b which are screwed to the cord-reinforced flexible joint device 334 via the screws 354. If, for example, the first flange 340 is driven, two drives can be driven with such a coupling de...

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PUM

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Abstract

A coupling device is provided for connecting an engine to a transmission of a vehicle, in particular a rail vehicle, said device comprising at least one filament-reinforced articulation device, at least one first flange that is associated with the engine and at least one second flange that is associated with the transmission, the at least one filament-reinforced articulation device coupling together the first flange associated with the engine and the at least one flange associated with the transmission.

Description

FIELD[0001]The present invention relates to a coupling device for connecting a motor to a gear unit of a vehicle, i.e. the coupling device is arranged on the drive side in a vehicle, in particular in a rail vehicle. The term “on the drive side” in this connection means that the coupling device is arranged between the motor output shaft and the gear unit input shaft, thus connects the motor to the gear unit.BACKGROUND[0002]One field of application of such a coupling device can be, inter alia, low-floor vehicles. In particular, rail vehicles but also busses can be configured in the form of low-floor vehicles. A low-floor vehicle in this connection is to be understood as a vehicle, for example a rail vehicle, the floor of the interior of which is arranged below the upper edge of a wheel of the vehicle. For example, the floor can be provided in the region of half the diameter of the wheel. Low-floor vehicles are intended to allow a barrier-free boarding and deboarding for passengers of ...

Claims

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Application Information

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Patent Type & Authority Patents(United States)
IPC IPC(8): F16D3/78F16D3/62B61C9/50B61F5/50
CPCB61C9/50F16D3/78B61F5/50F16D3/62B61C9/46B61F5/00
Inventor HUBER, ARMINBRANDT, MARCLOEW, JOHANNLIESSEL, ROLANDORTHOFER, WOLFGANG
Owner SGF SUDDEUTE GELENKSCHEIBENFAB
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